Home / 20,415,065.80-30,622,598.70-18,183,013.60

Finding the Fourth Proportional to 20,415,065.80, 30,622,598.70 and 18,183,013.60

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Solution

The fourth proportional to 20,415,065.80, 30,622,598.70 and 18,183,013.60 is: 27,274,520.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,415,065.80 : 30,622,598.70 = 18,183,013.60 : x
  2. Step 2: Convert to fraction form
    20,415,065.80/30,622,598.70 = 18,183,013.60/x
  3. Step 3: Cross multiply
    20,415,065.80x = 30,622,598.70 × 18,183,013.60
  4. Step 4: Simplify right side
    20,415,065.80x = 556,811,128,629,442.38
  5. Step 5: Solve for x
    x = 556,811,128,629,442.38/20,415,065.80
  6. Step 6: Final answer
    x = 27,274,520.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.